3878649

Information

• Patent Grant
• 3878649

• References
• Source

• Patent Number

  3,878,649

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1975
  50 years ago

• CPC

  • E06B3/72 - consisting of frame and panels
  • E06B2003/7013 - put in place through a slot in the frame
  • E06B2003/7048 - with arcuate periphery; with openings having an arcuate periphery
  • E06B2003/7086 - One-piece frames

• US Classifications

  • 049 - Movable or removable closures
  • 052 - Static structures
  • 160 - Flexible or portable closure, partition, or panel